Description: Orange or yellow crystalline powder Identification: IR , UV Water: Not more than 12.0% Residue on ignition :Not more…
Description: Orange or yellow crystalline powder
Identification: IR , UV
Water: Not more than 12.0%
Residue on ignition :Not more than 0.1%
Chromatographic purity:
Total: Not more than 2.0%
Individual: Not more than 0.5%
Specific rotation Between +19°and +24°
Organic volatile impurities:
Ethanol: not more than 0.5%
Aether : not more than 0.5%
Assay :Between 98.0% and 102.0%
Solubility:
practically insoluble in water、chloroform、ethanol and ether, freely soluble in watery alkali, soluble in watery hydrochloric acid
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